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Finding the Fourth Proportional to 486,708.10, 671,650.03 and 271,851.30

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Solution

The fourth proportional to 486,708.10, 671,650.03 and 271,851.30 is: 375,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,708.10 : 671,650.03 = 271,851.30 : x
  2. Step 2: Convert to fraction form
    486,708.10/671,650.03 = 271,851.30/x
  3. Step 3: Cross multiply
    486,708.10x = 671,650.03 × 271,851.30
  4. Step 4: Simplify right side
    486,708.10x = 182,588,933,800.54
  5. Step 5: Solve for x
    x = 182,588,933,800.54/486,708.10
  6. Step 6: Final answer
    x = 375,150.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.